The Paradox of Sam

In The Breakout part 2, Sam and Eregon end up going back in time inside the earths core, which kills sam. Ben travels back in time before Sam and Eregon go back, and Ben saves Sam, causing Eregon to go to Agartha alone. However, if Ben saved Sam, he would have never gone back to save him in the first place, so this would cause a paradox, sending both Eregon and Sam to Agartha again. This would eternally damn Sam and Eregon to Agartha and they could not be saved with time travel. This paradox doesn't exist within the serial however, and instead, after Ben travels back and saves Sam, it stays that way and Sam is freed, while Eregon becomes trapped in Agartha in 7986 BC. The reason the paradox doesn't exist is unknown, but the creators are aware.

Another noticiable paradox is that the shape shifters open a gateway to Agartha to free Eregon in the year 7986 BC, which means the gateway would exist throughout the events of The Breakout. This doesn't change the story of The Breakout in any way, but it simply rewrites The Breakout as having the gateway already open, unbeknowst to the telepaths.